Micro-milling to assure the finest quality For non-porous surfaces Superior contrast on light-colored surfaces The most popular of Sirchie&';s oxide latent powders, Silk Black features micro-milling to assure the finest quality, and is one of the most versatile powders available. Sirchie has followed this same formulation for more than sixty years, which attests to its popularity. Use Silk Black on non-porous surfaces such as: painted wood, metal, and most plastic surfaces. This powder offers superior contrast on light-colored surfaces. 2 ounce jar.table.productattributes, .productattributes td { border-bottom: 1px solid #ddd; border-collapse: collapse; padding: 2px; text-align: left; }